[R-sig-Geo] confused by coordinates

[Rick Reeves]

Mr. Zhang:

There are many good summaries on the Internet: Google 'spatial 
coordinate systems'

Here is a good example...
http://www.environment.sa.gov.au/mapland/sicom/sicom/tp_scs.html

Best of luck!

Rick Reeves,
UC Santa Barbara
NCEAS
www.nceas.ucsb.edu

zhijie zhang wrote:

>Dear Friends,
>  Coordinate  is common in geology/spatial science. There are
>latitude/longitude coordinate, x/y coordinate,......... It maybe easy for
>all of you, but difficult for persons without  the background knowledge of
>geology, so they can't do the correct analysis with different coordinate,.
>In my opinion, it's very important to make clear on it and its application
>with R,  can anybody with excellent knowledge obout it  give some guide on
>using it with R?
>For different coordinate,
>A:
>latitude    longitude   attribute
>
>B:
>x   y   attribute
>
>--
>Kind Regards,
>
>	[[alternative HTML version deleted]]
>
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>

-- 
Rick Reeves	
Scientific ProgrammerAnalyst
National Center for Ecological Analysis and Synthesis (NCEAS)
University of California, Santa Barbara
reeves at nceas.ucsb.edu
805 892 2533